No clear bony abnormality in the left hip joint means that there is no obvious lesion in the left hip joint, i.e., no pathologic disease has developed. If the patient has pain symptoms in the left hip joint, but the examination result shows no clear bone abnormality, it means that there is no lesion in the left hip joint, i.e., no pathologic disease has been produced. It may be due to strenuous exercise or improper exercise, resulting in a slight strain on the ligaments or muscles around the left hip joint. The hip joint connects the upper and lower limbs of the body and has a coordinating role. If strenuous exercise or improper exercise is performed, the ligaments or muscles around the left hip joint can be strained, and symptoms of left hip pain may occur. Generally, it can be gradually relieved after braking and resting.